Apparatus for forming and assembling inner spring constructions



May 13, 1947. E. E. WOLLER APPARATUS FOR FORMING AND ASSEMBLING INNERSPRING CONSTRUCTIONS 4 Sheets-Sheet 1 Filed Sept. 7. 1942 jhverzz offlue/a Z Z00 22 67 May 13, 1947. wo 2,420,511

APPARATUS FOR FORMING AND ASSEMBLING INNER/SPRING CONSTRUCTIONS FiledSept. 7. 19:12 4 Sheets-Sheet 2 May 13, 1947. E WQLLER APPARATUS FORFORMING AND ASSEMBLING INNER SPRING CONSTRUOTIONS Filed Sept. 7. 1942 4Sheets-Sheet 3 flaws/21%; Edward I 20082197 May 13, 1947. E, WQLLER2,420,511

APPARATUS FOR FORMING AND ASSEMRLING INNER SPRING CONSTRUCTIONS FiledSept. 7. 1942 4 Sheets-Sheet 4 Patented May 13, 1947 APPARATUS FORFORMING AND ASSEM- BLING INNER SPRING CONSTRUCTIONS Edward E. Woller,Kenosha, Wis., assignor to Simmons Company, New York, N. Y., acorporation of Delaware Application September '7, 1942, Serial No.457,584

14 Claims. 1 This invention relates to an improved apparatus for makingand assembling inner spring constructions such as are employed in innerspring mattresses and like cushion structuresi Machines have heretoforebeen devised for as-- sembling coil springs and uniting rows thereof bymeans of wire helices fed endwise and rotated and guided so as to bethreaded around juxtaposed coil portions of the springs. In the machinesheretofore devised the coil springs were preformed and the coil portionsthereof which are embraced by the tying helix may be straightened outsomewhat to facilitate threading of the helix therearound, thestraightened coil portions being thereafter permitted to return toapproximately normal position. The return of the straigthened coilportions to approximately normal condition results in a desirablebinding effect which prevents the production of rattling noises in thespring construction incident to relative moving of the spring coils andhelices.

Spring constructions have also been made wherein the springs have theirend coils preformed with specially shaped offsets which more or lessinterlit when the springs are arranged in rows, the offsets sometimesbeing disposed substantially in contact with each other and sometimes inrelatively offset relation, the usual wire helices being employed tounit such preformed spring coil portions.

The present invention has for one of its objects the provision of meansfor holding springs in predetermined relationship while a wire helix isthreaded around predetermined portions of the springs to tie themtogether and to incorporate in such holding mechanism, means for formingoffsets of the character referred to, thereby to eliminate an extrahandling of the springs which would be required if they'were to beplaced in mechanism for forming the offsets before being placed in theapparatus for tying them together by means of the wire helices.

Other objects of the invention are to provide combined mechanism of thecharacter indicated which will be operative at fairly high speed so asto provide an adequate rate of inner spring unit production; to provideapparatus of the character indicated which will be automatic inoperation and will not require manual handling or operations; and ingeneral it is the object of the invention to provide improved apparatusof the character indicated.

Other objects and advantages of the invention will be understood byreference to the following specification and accompanying drawings (foursheets) wherein there is disclosed apparatus for the production of twoforms of coil offsets together with certain elements of mechanism forholding the springs with their offsets in juxtaposed position and meansfor guiding a helical wire around the coil offsets.

In the drawings:

Fig. 1 is a fragmentary plan.

Fig, 2 is a section on the line 22 of Fig. 1.

Fig. 3 is a section on the line 33 of Fig. 1.

Fig. 4 is a section on the line 44 of Fig. 3.

Fig. 5 is a plan of one element of mechanism appearing in the otherfigures and illustrating certain details thereof.

Fig, 6 is a fragmentary plan view corresponding to Figure 1 but showinga modified arrangement.

Figs. 7 and 8 are sections respectively on the lines 1-! and 8-8 ofFigure 6.

Fig. 9 is an end elevation of the spring coil forming and gripping endof one of a pair of .00- operating jaws, the location of this view beingsubstantially as indicatedby the line 9-9 of Figure 7.

Fig. 10 is a fragmentary plan of one element of mechanism appearing inthe construction shown in Figure 6 to 8 and in Figure 11.

Fig. 11 is a fragmentary plan section approximately on the planeindicated by the line I I -ll of Fig. 7.

The mechanism herein disclosed is adapted to be employed in apparatussuch as shown in Patent No. 1,905,459 to Gail and in my Patent No.2,388,106 to me. In the mechanism herein disclosed certain jaw parts aremovable toward and from each other and toward and from a guide tracksubstantially as are counter-parts of the mechanism shown in said Gailpatent and in my said patent. Reference is therefore made to saidpatents for a complete disclosure of the mechanism for actuating theparts of the mechanism herein disclosed.

Referring first to Figures 1 to 5 inclusive, there is there shownmechanism including a pair of jaws t2 and I3, the same being suitablymounted for sliding movement toward and from each other on a bed platel4 mounted on a suitable supporting frame structure I 5. The jaw I2 isadapted to be reciprocated in an endwise direction by means of a rockarm I6 pivotally mounted intermediate its ends as indicated at ll to abracket carried by the frame I5. The jaw I3 is similarly actuated bymeans of an arm I3 pivotally mounted intermediate its ends as shown at19 on a suitable bracket carried by the frame I5.

The arms I6 and I8 have their lower ends (not shown) suitably connectedto mechanism for rocking the arms and the upper ends of the arms areequipped with anti-friction rollers disposed in suitable recesses oropenings in the jaws I2 and I3 for transmitting rocking movement of theupper ends of said arms into sliding movement of the respective jaws.The arms IE and I8 are so actuated that the jaws I2 and I3simultaneously move toward each other and later away from each other.

The relatively adjacent ends of the'jaws I2 and I3 also cooperate with aguide track 23 which is suitably mounted in thebed plate I4 or othersupporting parts-preferably as shown in my said co-pending application.The guide track 20 consists of a series of sections such as shown inFigure 1, the sections being arranged end to end to form a continuous,elongated track extending for the full length of rows of coil springswhich are to be united, by wire helices.

: The track section 20 associated with. each pair of jaws is providedadjacent the opposite sides 1 o f the jaws with upstanding flangeelements 2I,

r122, 23, and 24 which cooperate with thetrack V The coil; springswhendelivered to the apparatus,

are of normal, approximately circular formamThe. jaw; I3..hasitsoperative end shaped to substantially correspond to the interior ofan offset to be formed in the terminal coil of the spring 21. Theutrackelement 20 is provided witha recess 28 of a depth substantiallycorremsllQ ding to. the thickness or. diameter of thewire in, ,the,,coil,spring 2I.- .Said recess is, shaped to -cooperate with the.operative end. portion. I3a

of the jaw I3 to form an offset having an initially' straightenedportion- 29, and .end portions 30,1.30 making the elongated straightenedportion 29 in the coil, body properiseeFigure 4). As best, showninFigure 4, the. flange-elements 22 and 24 of the guidetrackstructure.have

their ends so shaped as to constitute continua- I -tions of the shoulderor recess. 28 inthev track bar- 2II- for; also cooperating withdtheladjacent end portion of the jaw I3 to form said offset.

" The jaw I3 is also preferably provided with ear portions 3I 3| on itsoppositesides for engaging the spring coil 21 to bend the same aroundthegadjacent rounded corner portions of the guide track fianges 2'2 and2t. Said ear portions 3I are preferably recessed as indicated at. 32 toreceivethe-adjacent portions of thelcoil 21 so 7 as to prevent lateraldisplacementthereof incident to the forming pressure developed in theoperation of the jaw.

{The -jawi I2 similarly has its operative end provided with a, seat 33having rounded receding endportions .34734 for bending a part of theterminal coil ofthe spring 26 to substantially straight form indicatedat 35 but without forminganypermanent or sharp bends or end shoul-.,ders or legs such as the shoulders 30 formed 1 in the spring coil 21.The rounded end portions r 3! Ofithe seat in the jaw I2 cooperatewithsuit- ;ably chamfered corners 35 of 1 the helix guide ,traclg flangeelements 2Iand 23. The seat portion 33 ofi-thejaw IZcooperates also witha cor-.

4 respondingly formed shoulder portion 36 of the jaw I3 (see Figure 3)to grip and hold the straightened coil portion 39 in its straightenedposition substantially overlying the straightened offset portion 29 ofthe coil 21. The jaw I2 also is provided with a lip portion 31 which, asshown in Figure 3, extends over the-uppermost coil portion 39 so thatthe jaw I2 cooperates with the jaw I3 and with the track 20 tocompletely enclose said coil portions 29 and 39.

.The trackis provided with helically disposed grooves 38 correspondingto the pitch and lead of the helix 25 and the adjacent or cooperatingends of-the jaws I2 and I3 are also provided-with grooves I2b and I3brespectively which constitute, in' effect, continuations of the grooves33. -,The grooves in the ends of the jaws and the grooves in the trackserve to permit the helix to be rotated and fed endwise between the sumea more or less arched-formation as illustrated at the righthand end ofFigure 1.: Such return to arcuate form from thestraightened formproduced by the jaws is desirable in that it tends to create pressure.pointsbetween the spring coil portions andthehelix 25 which preventrelative shiftingmandl incidental rattling noises in thespring-construction unit.- The exheld tent to which .theflattenedportions will return to arcuate form depends of coursesomewhatupon theresiliency of the wire employed in making the springS. Some. controlofthe final-form of the offsets is possible byappropriately shaping thecooperating. ends of the jawswithin-limits dictated by the requirementsofeffecting-suflicient straightening of the coil. portions to insurefree travel of the helix around the same.

In the-arrangement-shown inFigures 6 to'11 inclusive the terminal coilsof spring -designated 40 and M respectively haverelatively-short'offsets '42 and 43 respectively formed therein and inlongitudinal, substantially co-axially alinement while a wire helix- 44is-threaded around the same. The .wire helix 44 is guided by a suitablygrooved track section 4 5 which substantially corresponds toth'e tracksection-20 shown in Figures 1 to5 inclusive except-that in the tracksection' 45'-oppositely--facing-recessed portions ofjawsv lli andfill-respectively to'form the saidoffsetsAZ and43.

The jaws 48 and .49 .are mounteddor sliding ing so mounted on a bedplate. 50 which-corresponds to the bed plate I4 in the structure shownin Figures 1 to 5 inclusive;- Thetrack 45 is also suitably mounted onsaidbed plate in fixed position thereon.

. The tracks45 has associated therewithup- ,wardlyextending. flangepieces 5I. 52, 53,- and 54,

said flange pieces being suitably-rigidlysecured to thesectionsiand-heldtherewith in fixed re- The jaws 48 and 49 are substantially alined andthey each have projections designed to cooperate with the seats 41 and46 respectively of the track 45 to form the relative staggered offsets42 and 43 in the coils 4! and 40 respectively.

The projection 55 of the jaw 49 has an end portion 51 formed tocooperate with the shoulder or seat 45 in the track 45 to form theoffset 42. Said projection 55 is also so shaped as to cooperate with anear or lug 58 formed on the guide track flange 52 and with a suitablyshaped recessed portion 59 of the guide track flange element 54 to formthe end portions or legs 50 and BI of the ofi'set 45 in the coil 4 l Theprojection 55 of the jaw '48 is similarly formed to cooperate with therecessed seat or shoulder 4'! in the track Hi and with an ear portion 62formed on the flange element 53 and a suitably recessed seat 63 formedin the adjacent end portion of the flange element 5i. The projectingportions 55 and 55 each have upper portions 64 and 65 respectively whichextend over the respectively engaged spring coil portions to move thesame downwardly to the respective seats 47 and 45 in the track 45 and tohold the same in cooperative relation to said seats while the respectivejaw projections enter said recessed seats to form the offsets in thespring coils.

When the springs are initially delivered to the jaws, they may notimmediately rest on the track 45 but the inclined cam-like surfaces 65and 5'! of said projecting portions 54 and 55 respectively will serve tocam said coil portions downwardly into operative relation to the offsetforming portions such as 57 of the jaws and the track seats 45 and 41.

Each of the jaws 48 and 45 have mounted therein a spring-coil holdingpin such as 55. Said pin 68 extends length-wise of the respective jawsand about centrally of the respective offset formin projections 55 and55 therein as best shown in Figure 6.

Each spring-coil holding pin 68 is longitudinally slidably mounted in asuitable bore 69 provided in the jaw, a coil spring Hi being providedaround a portion of the pin for urging said pin to move outwardly of therespective ends of the jaw projections 55 and 55. The springs 15 arefairly stout springs and under compression between the enlarged outerend portion H of each pin and the bottom shoulder 12 of the recess 59.Movement of the respective pins 68 under the influence of the spring I!)may conveniently be limited by providing the inner end portion 13 ofeach pin with a cross pin 74 extendin diametrically through the pin l3.Limited movement of the pin 65 is permitted byproviding an opening H5 inthe jaw for the pin 14, said opening I15 being of such size as to permitthe desired extent of movement of the pin 58 relative to thejaw.

The outer end of the pin 58 has a radially upwardly extending lug orkey-like portion 15 formed integral therewith and slidably mounted in aguideway 16 shaped to slidably receive said key-like portion 15.

After the jaws 48 and 49 have been moved to their limited movementtoward the track 45 and have completed the formation of th offsets 42and 43 in the spring coils, the jaws are retracted slightly. When thejaws are retracted to the limited extent indicated, the spring-pressedpins 68 are forced outwardly by the respectiv springs 15 so as to causethe key-like heads 15 of the pins to remain in the position shown inFigure 11 relative to the track 45 and the coil offsets 42 and 43 formedtherein, thereby to hold said coil offsets in said position relative tothe track while the helix 44 is threaded around said coil offsetportions 42 and 43. In Figure 11 the jaws are shown in their innermostposition and before the same are retracted. In Figure 6 the jaws areshown retracted to such an extent that the olfset-forming ends such as51 thereof are disposed approximately in registration with the innerwalls of the flanges of the guide track 45. Hence said offset-formingends of the jaws do not interfere with the free passage of the helix andthe winding thereof around the spring coil olfsets. The heads 15 of theholding pins are, however, suitably grooved as indicated at 11 to form,in efiect, continuations of the helical guide grooves of the track 45 tothereby permit the winding of the helix around the offset portionsnotwithstanding the holding thereof in place on the track by saidholding pins.

After the helix has been threaded for the entire length of the springrows to be assembled, the jaws 48 and 45 are further retracted so as towithdraw the holding pins 58 from engagement with the coil offsets. Thehelically connected coil springs may then be elevated and movedlaterally over the jaws preparatory to the next coil offset-forming andhelical-tying operation. In Figure 6, there is illustrated an arm 78having a double hooked end portion 19 which is adapted to be movedupwardly to raise the connected coils above the top of the jaws and thenmoved laterally to feed the connected spring rows laterallysubstantially as shown in the said Gail patent and in my said co-pendingapplication. The jaw 49 is suitably recessed as indicated at and theflange element 54 is suitably recessed as shown at M to permit therequired endwise movement of the hooked member 18 into operativeposition relative to the coil. Similarly the jaw I3 is grooved asindicated at 82 to permit the operation of a spring construction liftingand feeding device such as 18, also in keeping with said patent andco-pending application.

When the springs 45 and 4| (Figure 6) are displaced from the track 45and released from the respective jaw ends, the inherent resiliency ofthe wire of which the springs are formed causes the offset portions 42and 43 to at least partially return to their initially curved condition,the result being that said offsets will appear approximately as shown atthe righthand end of Figure 6. As there shown, the offsets 42 and 43 aremore or less curved and approximate a condition in which they will haveengagement with opposed turns of the helix 44 whereby undesirableshifting of the offset portions 42 and 43 within the helix will beresisted. It is not, however, important that the offsets 42 and 43 resumsufficient curvature to actually engage opposed portions of the helixsince it is uite feasible to produce the offsets of such length that theend legs 85 and 86 thereof will have firm engagement with certain turnsof the helix 44 substantially as indicated at 81. The helix may ineffect be slightly compressed between the legs 85 and 86 of each of saidoffsets to thereby insure the maintenance of contact between the helixand offsets to prevent undesirable relative movement between said parts.It may be noted that as shown in Figure 6 the offsets 42 and 43 willremain in substantially straight condition when held in the track seats46 and 41 by the holding elements 15, thi being due to thepresence oftherespective jaw'projections-between the legs 85 arid- 86 which serve tohold the latter in substantially-fixed position between therespectively-adjacent ends'of the side flange elements 52 and 54 orand-53.

For the same purpose the track 20 1s recessed as shown at 83 and the jawI2: recessed as shown at 84 in the construction shown in Figures 1 to 5inclusive.

It will be understoodthat although there has been illustrated anddescribed in this application only one set of jaws for acting'onjuxtaposed coil portions ofsprings in adjacent-rows; that in a fullsized spring assemblingma'chine; such as shown in the Gail patent and'inmy'said -copending application, a plurality of sets of jaws such asshown and described are contemplated, there being one set of=jawsfor-eachspring in the rows of springs to be united; Furthermore,

in respect of the arrangement shown in Figures;

1- to 5 of this application, the cam operating means for actuatingthejaws of-the said patent and co-pending applicationmay be employed orthat other arrangements may be employed if dey sired or found necessaryto supply the force required to form the offsets in the springs. Inrespect of the actuation ofthe jaws in the form of constructionrepresented in Figures 6 to 11 inclusiVe,- the cam operating means shownin said 1 patent and co-pendin application typify one form of operatingmechanism, although itwill be apparent that some slight modification ofthe cam will be required to produce the two-step retracting movement ofthe jaws, theoperating cam mechanism may in general be ofthe samecharacter as shown in said patent and co-pend- .ing application/ Therequired cam modification involves merely proper designing of the cam toproduce the required movement and,- being an ordinary mechanicalexpedient, is not herein illustrated.

Apparatus embodying the jaw constructions herein described will haveconventional coil springs delivered to it,will operate on said springsto form the'offsets-desirecl, effect tying of the springs togetherbymeans of helicals and will advance the tied-together spring rows to"permit the delivery of anotherrow of'springsinto-juxtaposition with thetrailing end of the previously united spring rows. The mechanism hereindescribed thus serves to completely eliminatethe independent handlingand-forming of oiTsets in the spring coils which are initially formed insubstantially spiral or circular form by. an suit- "able spring wirecoiling mechanism,

Changes inthe describedconstructionmay be made withoutdeparting'from'rthe spirit of the invention, the scope of which shouldbe determined by reference to the following claims, the same beingconstrued as broadly aspo'ssible consistent with the state of the'art.

I-claiin:

1; In apparatus of the classidescribed, anormally stationary trackmember for guiding a rotating helix in an endwise direction, a pair of 1track so as to cause a rotating helical wire-mov- 2. In-apparatus oftheclass described, a normallyistationarytrack member for guiding arotating helix inan endwise direction, a pair of jaws respectivelydisposed on opposite sides of said track member and movable toward andfrom the same, said track member being provided with a recessed seat andone of said jaws being provided with an-end formation adapted to force aI portion of a spring coil into said seat to form an offset in thespring coil, flanges extending upwardly from the opposite sides of saidtrack and on-opposite sides of said oilset forming jaw for cooperatingwith said track to guide said helix,

said flanges having end portions constituting lateral extensions of theend walls of the recess in said track for also cooperating with said jawend -formation to form laterally extending end legs in said oifset, saidjaws and track cooperating to hold coil portions of juxtaposed springsin predetermined position relative to said track so as to cause arotating helical wire moving endwise along said track tobe wound aroundsaid coil portions to thereby tie said springs together.

3.- Apparatus according to claim 2 wherein said one jaw is provided withears for cooperating with the ends of said flanges to efiect bending ofsaid laterally extending offset leg portions relative to the normalcurvature of the coil portion in which the offset is formed.

4. In apparatus of the class described, a normally stationary helicallygrooved track memher for guiding a rotating helix in an endwisedirection, a pair of jaws respectively disposed on opposite sides ofsaid track member andmovable toward and from the same, said track memberbeing provided with a recessed seat and one of 'helically disposedgrooves'constituting, in effect,

continuations of the grooves in said track when the jaws'are in closedposition relative to the traclrfor permitting'free movement of the helixbetween the jaws and track,'said jaws and track cooperating tohold coilportions of juxtaposed springs in predetermined position relative tosaid track so as to cause a rotating helical wire movingendwisealong'said track to be wound around said-coil portions to thereby-tiesaid springs together.

5; In apparatus of the class described, a normally stationary trackmember for guiding a rotatinghelix in an endwise direction, a pair ofjaws respectively disposed On opposite sides of said track member andmovable toward and from thesame, said track member being provided witha' recessed seat, and one of said jaws being provided with an endformation adapted to force a portion of a' spring coil into said vseatto form an ofiset in. the springcoil, said jaws having cooperating endportions operative to grip and hold a portion of another spring coil inpredetermined condition and juxtaposition relative to..said oilcoilportionsv of juxtaposed springs in.predetermined position relative tosaid track so as to cause a rotating 'helical'wire moving endwise alongsaid track to be wound around said coil portions to thereby tie saidsprings together.

6; -Apparatus-according to claim*5 wherein said portion from normalcurved condition to relatively straightened condition approximatelyregistering with the offset formed in the first mentioned coil portionto thereby facilitate encircling of said coil portions by said helicalwire as an incident to its endwise movement while rotating.

7. In apparatus of the class described, a normally stationary trackmember for guiding a rotating helix in an endwise direction, a pair ofjaws respectively disposed on opposite sides of said track member andmovable toward and from the same, said track member being provided witha pair of longitudinally spaced, oppositely facing recessed seatsrespectively opening to the opposite sides of the track, and said jawsbeing respectively provided with projections respectively adapted toforce portions of spring coils into said seats to form offsets in suchspring coil portions, means for temporarily holding said offset coilportions in said seats so as to permit sufi'lcient retraction of saidjaws to clear said offset portions for encirclement thereof by arotating helix moving endwise along said track member.

8. Apparatus according to claim 7 wherein said offset holding meanscomprise members carried by said jaws and mounted therein for limitedmovement inwardly and outwardly of the ends of said jaw projections.

9. In apparatus of the class described, a normally stationary trackmember for guiding a rotating helix in an endwise direction, a jawmounted for movement toward and from one side of said track, said trackmember being provided with a recessed seat opening to said side thereof,and said jaw being provided with a projection adapted to force a portionof a spring coil into said seat to form an offset in said spring coil,an offset holding element mounted in said jaw for movement inwardly andoutwardly of said projection, means for urging said holding elementtoward said track member to hold said offset in fixed position in saidseat while said jaw moves away from said track, thereby to clear saidoffset for encirclement by a rotating helical wire moving endwise alongsaid track.

10. Apparatus according to claim 9 wherein said track member is providedwith helically disposed grooves for guiding said helical wire andwherein said oifset holding element is provided with a grooveconstituting, in effect, a continuation of one of said track grooves forguiding the helical wire around said coil offset.

11. Apparatus according to claim 9 wherein there is provided a pair ofsaid jaws respectively disposed on opposite sides of said track andmovable toward and from the same, and wherein the jaw projections aredisposed in relatively staggered relation and said track is providedwith a pair of seats for respectively cooperating with said jawprojections.

12. In a machine for uniting coil springs, cooperating, relativelymovable members adapted to hold between them and thereby position aspring coil portion for the application of a uniting means, one of saidmembers being provided with a reoessed seat and the other with aprojection which is operative as an incident to relative movement of themembers into spring coil holding position, to force a portion of saidcoil into conformity with said recessed seat, thereby to form apermanent offset in said spring coil for facilitating the application ofsaid spring uniting means.

13. In a machine for uniting coil springs, cooperating, relativelymovable members adapted to hold between them and thereby position aspring coil portion for the application of a uniting means, said membersbeing provided with cooperating shoulder portions which extendtransversely of the spring coil and are operative as an incident torelative movement of the members into spring coil holding position, tobend a portion of the coil to a laterally extending offset positionrelative to the remainder of the spring coil, thereby toform an offsetfor facilitating the application of said spring uniting means.

14. In a machine for uniting coil springs, cooperating, relativelymovable members adapted to hold between them and thereby position aspring coil portion for the application of a uniting means, said membersbeing provided with spaced pairs of cooperating shoulder portions whichextend transversely of the spring coil and are operative as an incidentto relative movement of the members into spring coil holding position,to bend spaced portions of the coil to laterally outwardly extendingoffset positions relative to the remainder of the spring coil, the coilportion extending between the outer ends of said offsets being therebyalso offset from said spring coil for receiving the spring unitingmeans.

EDWARD E. WOLLER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,905,459 Gail Apr. 25, 19331,920,862 Heuer Aug. 1, 1933 1,921,319 Murnane et a1 Aug. 8, 19331,993,189 Staokhouse Mar. 5, 1935 1,832,149 Stackhouse Nov. 17, 19311,881,672 Kirchner Oct. 11, 1932 1,948,754 Gail Feb. 27, 1934 2,012,904Bowersox Aug. 27, 1935 1,930,715 Heuer Oct. 17, 1933 1,705,821 Leh'mannet al Mar. 19, 1929 1,864,216 Poyner June 21, 1932

